Mei Ling has $20 to spend at the school bookshop. She buys an eraser for $1.45 and an exercise book for $3.80. How much change should Mei Ling receive from the cashier?
Show Worked Solution
Worked Solution
Step 1: Find the total cost of the two items. $1.45 + $3.80: cents 45 + 80 = 125 (write 25, carry $1); dollars 1 + 3 + 1 = 5. Total cost = $5.25.
Step 2: Subtract the total cost from the $20 Mei Ling started with. $20.00 − $5.25.
Step 3: Compute the subtraction: $20.00 − $5.00 = $15.00; $15.00 − $0.25 = $14.75.
Step 4: Check by addition: $14.75 + $5.25 = $20.00. ✓
Final answer: $14.75.
Answer: $14.75
Correct answer: $14.75
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